The first plane struck the World Trade Center in the late evening, Japan time. The American embassy contacted the Japanese Ministry of Foreign Affairs approximately one hour later, asking for all possible assistance in securing Americans. (There are somewhere on the order of 100,000 Americans in Japan at any given time.)
Prior to word arriving from the Ministry of Foreign Affairs to the Ministry of Justice to the various local bodies in Japan which handle civil defense, someone in the Kyoto Prefectural Police heard about the attacks on television and immediately ordered a full mobilization. Cops were called back in in the dead of night, and went down a list of every hotel in Kyoto asking whether they currently or habitually had American guests. Simultaneously, someone woke the Foreigner Registration clerks at Kyoto's several ward offices and pulled the addresses of every registered American in the city. Including some four dozen students of my study abroad program.
My professor was awakened at the first ray of dawn by a police lieutenant, who explained that there had been an attack on America the previous night. He explained that putting a watcher on every American in the city had strained their resources, and apologized that they had only time to scrape together two dozen police in full tactical gear to discourage the, quote, dishonorable no-account bastards from trying to continue the fight at a small American school half a world away.
I have had many, many occasions to grind my teeth due to interactions with Japanese cops, but I always tell myself that, in the balance, we still owe them one.
I first heard of the attack when a friend called my roommate and told us to turn on the TV. It was right after the first plane had just hit and they were still trying to figure out if it was some kind of accident. Shortly after, the 2nd plane hit and it became very apparent that it was no accident...
Walking to the subway, we could see smoke from the towers (and we were around 55th street). There was some confusion among pedestrians.
Back at my office, there was a TV and we saw what had happened. I tried to call home, but the phones and my cell weren't working. I emailed my family, and managed to catch a train back home to CT. The train was full; people were standing in the aisles.
Edit: A friend had a breakfast meeting scheduled at the Twin Towers that day, but it had been moved uptown and he was nowhere near when it happened.
I started with some local reaction coverage and by that evening was in a car on my way to New York City. Drove all night taking turns with our reporter and was within site of the smoking southern end of Manhattan by dawn. It was horrible to see the thousands of family members wandering around like zombies, many carrying pictures, still hoping for a miracle.
One side note from that day, my then 3 year old son asked my wife who was watching the news coverage, "Mom, why do you keep watching that show? You've already seen it."
That flight was the last out before BA cancelled all flights for like 2 months out of Pakistan. Was a bit nerve-wracking.
I was at a New Age store buying incense and charcoal blocks for the burner when the pager went off. It was almost 15:00. It had taken till then for the news to come through.
The pager went off just three further times: when the second plane hit, and when each of the towers fell, in turn.
That was the last time I ever received anything on that pager service.
By the time that class ended and I moved on to a history class, people were talking and everyone knew something happened with a plane flying into a building. The history teacher pulled a TV cart into her room, announced that what was happening would be in history books in the future, and had us watch CNN for the class period.
Our teacher told us that today was going to be an important day to remember and that he wasn't going to be the one to shield us from it. He rolled in a television and we watched the news until the period ended.
I switched on the office TV and called everybody upstairs to my room and we watched dumbstruck as the second plane hit.
After that I told my partners that the deal was likely off, no way the investors would fund a deal like that in a time of uncertainty, we got the call 15 minutes later.
We felt extremely connected with America in every way that that is possible from halfway across the world, one of us had a friend working in one of the towers and spent a day to make sure she was ok. Half the company was on the other side of the Atlantic at the time and it took quite some time before I was able to go there again.
The images of the smoking towers and then later the collapse will never fade, that's for sure.
After some talking he went like 'Have you seen that plane in NY? With all the possible places, the pilot manged to crash it into the tallest tower. It's on TV now, they even interrupted the programs'
So I switched on the TV to check it out, and then we quickly recovered our discussion and kept talking for another few minutes.
Then, all of a sudden, he went '..shit' in the middle of a sentence, and then silence for the next 10-20 seconds. The second plane had crashed into the other tower, with the whole fireball on live TV. I was watching it too. All I heard then was 'I call you later' and he hung up.
That night I was really expecting serious troubles.
I vividly remember a bunch of my friends' parents coming to pick them up at school as if their sons' lives were in danger. My mom called me to ask if I wanted to go home, I said no as I had practice that afternoon at school. Practice ended up being cancelled. There's my story.
I was waiting after school for a carpool to a Hebrew School I went to. Instead, my mom came to pick me up. I was somewhat confused. My mom eventually explained, in not very much detail, that people had flown planes into buildings in New York. I didn't really grok the significance of it then--I was too young to understand.
It wasn't until later, I think in 9th grade, that I saw a video of the planes crashing into the building, and then started to grok what had happened. I also later learned that a relative who worked in the Pentagon would have had a meeting in the wing of the Pentagon that was destroyed, but it was canceled so she was in her office when the plane hit. Thank God for that.
Once I got to work, we watched TV for the rest of the day. It was the strangest, most surreal work day I've ever experienced. There were lots of rumors going around, with great uncertainty over how many planes were taken over.
Everyone in our office, near our airport, was told to go home about 10 minutes after the second plane hit. We were weeks from filing for an IPO, but that never happened.
That day I awoke up 5-10 minutes before CNN broadcast the news of the first plane hitting. This still freaks me out just a little, since I never woke up this early.
I only switched on CNN to bore myself back to sleep. I sat up in bed when they announced that the first plane hit. I remember them speculating about whether the plane was a passenger jet or a small plane. I didn't leave the TV for the next 12+ hours.